
Fungus Gnat
Bradysia spp., Sciara spp., Mycetophilidae, Sciaridae
- Order & Family
- Order Diptera, Family Sciaridae or Mycetophilidae
- Size
- 2-8 mm (adults)
Natural Habitat
Damp, organic-rich environments, often associated with potted plants, decaying leaves, and moist soil. Indoors, they are common near houseplants.
Diet & Feeding
Larvae feed on fungi, decaying organic matter, and sometimes plant roots. Adults do not feed significantly or feed on liquids.
Behavior Patterns
Adults are weak flyers and tend to remain near the soil surface. They are attracted to light and moisture. Females lay eggs in moist soil. Larvae develop in the soil, feeding before pupating into adults.
Risks & Benefits
Potential risks: Larvae can damage plant roots, especially in young seedlings or unhealthy plants, leading to wilting and stunted growth. They can also be a nuisance indoors. Benefits: Contribute to decomposition of organic matter in outdoor environments.